Method for manufacturing electrode for secondary battery and method for manufacturing secondary battery

Abstract

Provided is a method for manufacturing a electrode for a secondary battery in which the electrode has a first layer and a second layer laminated on a current collector. The method comprising applying a slurry for a first layer to a surface of a current collector, applying a slurry for a second layer to the slurry for the first layer before the slurry for the first layer is dried, and drying the slurries for the first layer and the second layer after applying the slurries for the first layer and the second layer to obtain a laminated structure in which the first layer and the second layer are laminated in this order on the current collector. A first binder or thickener for the slurry for the first layer and a second binder or thickener for the slurry for the second layer are selected such that when viscosities are measured for a first solution including solvent and the first binder or thickener dissolved in the solvent in a specific mass ration and a second solution including a solvent and the second binder or thickener dissolved in the solvent at the same mass ration as the mass ration of the first binder or thickener under the same conditions, the viscosity of the first solution is higher than the viscosity of the second solution.

Dependencies are inferred from the claim text.